Someone please :(

Victoria • 21, engaged & TTC Baby No. 1
I'm about 7 days late and I have gotten a negative pregnancy test I have cramping but it doesn't feel like my normal premensus cramping! I have it on my left side and in the middle then it radiates to the right ovary almost. It's starting to drive me nuts... I had a vaginal ultrasound done about 2 1/2 weeks ago and there were no signs of cysts ?? Now my doctor wants me to go into the ER for possible ectopic pregnancy I'm waiting for my fiancé to leave work. Someone please ease my mind I can't trust google really. Are these symptoms I'm not bleeding at all..